Spencer A Reiter (SAR) got it right with his new and radical lockback folding knife design.
I was most impressed with the overall blade geometry and handle works he had posted on the Usual Suspect Network.
A full-time soldier, Spence makes knives on the side and has a loyal following. I would say that two of his masterpieces : the Ridge Runner and 1911 folder had caught my attention.
The lockback is an old design which was time proven. I think Spence got all the elements right with his rendition..